Final answer:
The subject is English. The correct answer is 'hind', which refers to a female deer in the given context.
Step-by-step explanation:
The subject of this question is English.
The grade level of this question is High School.
The correct answer to the question is hind.
In the passage, Arge boasted that she could run as fast as Helios while pursuing an animal. As a result, Helios turned her into a hind, which is a female deer. The word 'hind' is synonymous with 'doe', 'stag', and 'deer', but in this context, it refers specifically to a female deer.